Is CVE-2013-5755 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2013-5755, but active exploitation has not been confirmed.

Can CVE-2013-5755 be exploited remotely?

Yes. CVE-2013-5755 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2013-5755?

CVE-2013-5755 has a CVSS score of 10.0 (CRITICAL).

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CRITICALPOC

CVE-2013-5755

CWE-255Published: July 16, 2014· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official Description

config/.htpasswd in Yealink IP Phone SIP-T38G has a hardcoded password of (1) user (s7C9Cx.rLsWFA) for the user account, (2) admin (uoCbM.VEiKQto) for the admin account, and (3) var (jhl3iZAe./qXM) for the var account, which makes it easier for remote attackers to obtain access via unspecified vectors.

NVD Source

Technical Analysis

CVE-2013-5755 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2013-5755. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.